If you're doing rim brakes, I'd urge you to go with track ends and commit to this being a SS race bike. Sliders and EBBS are overly complex for rim brake cross bikes and just provide more opportunity for mechanical failure. Alternatively; commit to it being a geared frame with vertical dropouts and build an ENO wheel for running SS.
Also put a set of water bottle bosses on it and be done with it; otherwise you'll regret pigeonholing yourself when the day inevitably comes that you want to take your beloved race bike on a longer ride and you're stuck with camel pack or a bottle in your jersey pocket.
Cross isn't the place for weight weenies.
If you're doing rim brakes, I'd urge you to go with track ends and commit to this being a SS race bike. Sliders and EBBS are overly complex for rim brake cross bikes and just provide more opportunity for mechanical failure. Alternatively; commit to it being a geared frame with vertical dropouts and build an ENO wheel for running SS.
Also put a set of water bottle bosses on it and be done with it; otherwise you'll regret pigeonholing yourself when the day inevitably comes that you want to take your beloved race bike on a longer ride and you're stuck with camel pack or a bottle in your jersey pocket.